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FOUR_TTYS revision 1.51.20.1 
      1  1.51.20.1  matt #	$NetBSD: FOUR_TTYS,v 1.51.20.1 2007/08/07 18:05:48 matt Exp $
      2        1.1   gwr 
      3        1.1   gwr # FOUR_TTYS Sun3 (3/50, 3/60, 3/110, 3/160, 3/260)
      4        1.1   gwr # like GENERIC but both zs chips are used as ttys
      5        1.1   gwr 
      6  1.51.20.1  matt include "arch/sun3/conf/GENERIC"
      7       1.17   gwr 
      8        1.1   gwr #
      9        1.1   gwr # Note that by ommitting "kdb0" and "ms0" one can build
     10        1.1   gwr # a kernel that operates four plain serial lines, where
     11        1.1   gwr # two of them are data-leads-only ports wired up using
     12       1.15   gwr # a custom cable on the keyboard connector.  The flags 1
     13       1.15   gwr # part sets TIOCFLAG_SOFTCAR (remember, data-leads-only).
     14       1.20   gwr # Note: the signal levels on these are 0/5 Volt TTL.
     15        1.1   gwr #
     16  1.51.20.1  matt no kbd0	at zsc0
     17  1.51.20.1  matt no ms0	at zsc0
     18       1.15   gwr zstty2	at zsc0 channel 0 flags 1 # ttyc
     19       1.15   gwr zstty3	at zsc0 channel 1 flags 1 # ttyd
     20